I use FOSUserBundle, and I need to get the user names who wrote comments on my post.
I use function createQuery to get the post comments, and add this join to trying to get the names:
<?php
namespace CommentsBundle\Entity;
use FOS\UserBundle\Entity\User;
/**
* CommentsRepository
*
* This class was generated by the Doctrine ORM. Add your own custom
* repository methods below.
*/
class CommentsRepository extends \Doctrine\ORM\EntityRepository
{
public function getPostComments($planId)
{
$arrPlanComments = array();
$query = $this->getEntityManager()->createQuery(
'SELECT
c.id,
c.fkUser,
c.fkReply,
c.comment,
c.createdAt,
c.likes,
c.unlikes
FROM CommentsBundle:Comments c
INNER JOIN UserBundle:User u
WITH (c.fkUser = u.id)
WHERE
c.fkPlan = :planId
ORDER BY c.createdAt DESC'
)->setParameter('planId', $planId);
try
{
$arrPlanComments = $query->getArrayResult();
}
catch(\Doctrine\ORM\NoResultException $ex)
{
echo $ex->getMessage();
}
return $arrPlanComments;
}
}
I have extended the FOSUserBundle to my custom bundle named 'UserBundle', and it works fine, but I don't know how to add the relationship with this entity.
I am having this error when i add the join relationship:
[Semantical Error] line 0, col 164 near 'UserBundle:User': Error: Class 'UserBundle\Entity\User' is not defined.
What is wrong?
According to the documentation, you have to create own class for User entity, which will extend one provided by FOSUser. It seems like you haven't done that. That's what your error message probably indicates.
Related
I'm creating a function that should return an array of User ORM object. The function should run a query to the DB and return the users where the users' contact persons has 1 company (not more or less). The relationship is like this: every user has one or more contact person and every contact person has one or more companies.
The SQL to locate these users are like this. We are using PHP 7.1, Symfony 3.4 and Doctrine 2.7.
The problem that I have is that I cannot manage to describe this in Doctrine QueryBuilder syntax so that an array of User ORM objects are returned. Can anybody give me some advice?
SELECT users.email
FROM company
INNER JOIN contact_person ON contact_person.id = company.belongs_to_contact_person_id
INNER JOIN users ON users.id = contact_person.belongs_to_user_id
GROUP BY users.email
HAVING COUNT(company.id) = 1
Depending on how your mapping is on your entities, you have multiple solution.
It would be nice if you can show us what you tried so we can see what you miss.
The best is to use the repository of the entity you whish to have an array of:
namespace App\Repository;
use App\Entity\User;
use Doctrine\ORM\EntityRepository;
class UserRepository extends EntityRepository
{
/**
* #return User[]
*/
public function findUsersHavingAtLeastOneCompany():array
{
return $this->createQueryBuilder('user')
->join('user.contact', 'contact')
->join('contact.company', 'company')
->where('contact.company = 1')
->getQuery()
->getResult();
}
}
When using the createQueryBuilder function, it will auto populate the select and the from.
The getResult will return an array of entity (if you have not defined a select)
I fixed this by using the following code using createNativeQuery. It can probably be done by using fever lines of code, but it does the job for me :)
$em = $this->getEntityManager();
$sql = <<<SQL
SELECT users.id
FROM company
INNER JOIN contact_person ON contact_person.id = company.belongs_to_contact_person_id
INNER JOIN users ON users.id = contact_person.belongs_to_user_id
GROUP BY users.id
HAVING COUNT(company.id) = 1
SQL;
$rsm = new ResultSetMapping();
$rsm->addScalarResult('id', 'text');
$query = $em->createNativeQuery($sql, $rsm);
$locatedUsers = [];
foreach ($query->getResult() as $lUser) {
foreach ($lUser as $user) {
$locatedUser = $em->find("Project\User\User", $user);
array_push($locatedUsers, $locatedUser);
}
}
return $locatedUsers;
I have a database model with 2 tables: user and experimentation. Relation is n:n, so I created a third table with the 2 foreign keys.
| Experimentation | 1-------0..n |ExperimentationUser| 0..n-------1 |User|
Entity are generated thanks to Doctrine (with annotations). I got UserEntity and ExperimentationEntity, but not ExperimentationUserEntity. When I look into USerEntity, I can find a collection of "associated experimentation IDs".
I would like to get all experimentation names (not IDs) for a specified User. In common SQL, I'll have join Experimentation and ExperimentationUser with a WHERE clause (for User ID selection). But since I'm starting a Symfony (2.8) project, I'd like to use the QueryBuilder.
I'm not familiar with the syntax and I have no idea of how I can achieve this. What I have tried:
$repository = $this->getDoctrine()->getRepository('AppBundle:Experimentation');
$query = $repository->createQueryBuilder('e')
->join('...')
->setParameter('id',$id)
->getQuery();
But I don't know what to put in the join clause. I'm not even sure I need it.
Thanks for your help!
This is the way I do this kind of things. I don't use query builder but you con get the idea.
In the entity
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Experimentation
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="AppBundle\Entity\ExperimentationRepository")
*/
class Experimentation
{
//...
}
In the repository class
namespace AppBundle\Entity;
use Doctrine\ORM\EntityRepository;
class ExperimentationRepository extends EntityRepository
{
public function getExperimentationByUser($id) {
$em = $this->getEntityManager();
$query = $em->createQuery('SELECT e '
. 'FROM AppBundle:Experimentation e '
. 'JOIN e.experimentationUsers eu '
. 'JOIN eu.user u '
. 'WHERE u.id = :id ')
->setParameter('id', $id);
return $query->getResult();
}
}
Then in controller
//..
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('AppBundle:Experimentation')->getExperimentationByUser($user_id);
//..
In that way you can get the list of experimentation a then get it's name, or also in the query put just $query = $em->createQuery('SELECT e.name ' . If you also need data related to user can put $query = $em->createQuery('SELECT e, u ' and possibly you can save some database request.
I hope this help you.
I have 2 classes that I want to select from DB using 1 query in Symfony2 Doctrine.
The first entity is Calculation and the second is Polynomial. They have 1:1 relationship:
/**
* Acme\UserBundle\Entity\Calculation
*
* #ORM\Table(name="Calculation")
* #ORM\Entity(repositoryClass="AppBundle\Entity\CalculationRepository")
*/
class Calculation {
//...
/**
* #ORM\OneToOne(targetEntity="Polynomial")
* #ORM\JoinColumn(name="result_polynomial_id", referencedColumnName="id", nullable=false)
**/
private $resultPolynomial;
//...
}
I have a query, that returns me all Calculations of one user:
public function findByUser( $user ) {
return $this->getEntityManager()->createQuery(
'SELECT c
FROM AppBundle:User u
JOIN AppBundle:Polynomial p WITH u = p.user
JOIN AppBundle:Calculation c WITH p = c.resultPolynomial
WHERE u = :user
ORDER BY c.id'
)
->setParameter('user', $user)
->getResult();
}
And to the question... Is there a way to get resultPolynomials of the calculations in one query? If I use something like SELECT c, c.resultPolynomial I get error:
[Semantical Error] line 0, col 12 near 'resultPolynomial
': Error: Invalid PathExpression. Must be a StateFieldPathExpression.
And if I use foreach cycle all calculations to get the their resultPolynomials there are many queries to the DB (1 for each calculation) and it is not good for performance if I have many calculations.
I making a guess because you did not post your User definition nor your Polynomial definition.
I think you can make your DQL this way:
SELECT c, p
FROM AppBundle:User u
JOIN u.polynomial p
JOIN p.calculation c
WHERE u = :user
ORDER BY c.id
I guess you already defined your relations in your model so you don't need to repeat it here.
I have an Alert Class with some data in it. I then have an Availability class. In my Availability class I have
/**
* #var \Nick\AlertBundle\Entity\Alert
*
* #ORM\ManyToOne(targetEntity="Nick\AlertBundle\Entity\Alert")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="availability_alert_id", referencedColumnName="id")
* })
*/
private $availabilityAlert;
So this is a foreign key back to my Alert class, linked to my Alerts class id.
I am now doing some work on the Availability data, so I have the DQL query
public function getAlertAvailability($id)
{
return $this->getEntityManager()
->createQuery(
'SELECT a.id, a.classLetter, a.flightNumber, a.alertPseudo, a.availability, a.lastUpdated
FROM NickAlertBundle:Availability a
WHERE a.availabilityAlert = :id
ORDER by a.classLetter, a.lastUpdated'
)
->setParameter('id', $id)
->getResult();
}
The way I call that is like this
public function getAvailabilityData(){
$alerts = $this->em->getRepository('NickAlertBundle:Alert')->getActiveAlertIds();
if (!$alerts) {
echo "No Availability";
}
foreach($alerts as $alert){
$alertId = (int)$alert['id'];
$allAvailability = $this->em->getRepository('NickAlertBundle:Availability')->getAlertAvailability($alertId);
}
}
So I essentially get all my active Alerts Ids, and then pass this to get my Availability for these individual Alerts.
Now I have a couple of problems.
Firstly, in the DQL query I make, I need to also get something from my Alert table (a field called command). How would I do a join in this query to get this piece of data?
Secondly, with the data that is returned, how do I access availabilityAlert in my Twig file?
UPDATE
Attempt at join
public function getAlertAvailability()
{
return $this->getEntityManager()
->createQuery(
'SELECT a.id, a.classLetter, a.flightNumber, a.alertPseudo, a.availability, a.lastUpdated, u.searchCommand
FROM NickAlertBundle:Availability a
JOIN a.availabilityAlert u
ORDER BY a.classLetter, a.lastUpdated'
)
->getResult();
}
Doctrine will load that entity as a proxy (for lazy loading) when the Availability entity is loaded.
You can access these via a normal getter / property access, but they will typically be lazy loaded by Doctrine. You can have them joined via a DQL query and the property will be hydrated with all the linked entities already loaded, see Improving Performance with a Join.
You can then access those associated entities in Twig as any other property.
I've got an SQL query that returns all the rows in one table (country) which have a related entry in another table (ducks) but I'm struggling to turn this into DQL. This is a standard one-many relationship as each country can have multiple ducks, I believe it is all set up correctly as I can return ducks within a country and return the country a duck is in using standard code.
The working query is:
SELECT c.* FROM country c
INNER JOIN ducks d
ON c.id = d.country_id
GROUP BY c.country
ORDER BY c.country ASC
I've tried converting this to:
SELECT c FROM WfukDuckBundle:Country c
INNER JOIN WfukDuckBundle:Ducks d
ON c.id = d.country_id
GROUP BY c.country
ORDER BY c.country ASC
which produces the following error:
[Semantical Error] line 0, col 79 near 'd ON': Error: Identification Variable
WfukDuckBundle:Ducks used in join path expression but was not defined before.
I'm quite new to Symfony/Doctrine so I suspect it's probably something obvious!
I'm using Symfony 2.0.11 with doctrine
Update:
I've Also tried:
SELECT c FROM WfukDuckBundle:Country c
INNER JOIN c.ducks d
ON c.id = d.country_id
GROUP BY c.country
ORDER BY c.country ASC
where 'ducks' is defined in the Country class as:
/**
* #ORM\OneToMany(targetEntity="Ducks", mappedBy="country")
*/
protected $ducks;
public function __construct()
{
$this->ducks = new ArrayCollection();
}
the definition for country in the ducks class is:
/**
* #ORM\ManyToOne(targetEntity="Country", inversedBy="ducks")
* #ORM\JoinColumn(name="country_id", referencedColumnName="id")
*/
private $country;
Do yourself a favour and use the query builder. Easier to read and update and reuse your queries
<?php
namespace Vendor\Prefix\Repository;
use Doctrine\ORM\EntityRepository;
class SomeRepository extends EntityRepository
{
public function countryDucks()
{
// $em is the entity manager
$qb = $em->createQueryBuilder();
$qb
->select('country', 'duck')
->from('WfukDuckBundle:Country', 'country')
->innerJoin('country.ducks', 'duck')
->groupBy('country.country')
->orderBy('country.country', 'ASC')
;
$query = $qb->getQuery();
// Potential Hydration Modes
// --------------------------------
// Doctrine\ORM\Query::HYDRATE_OBJECT
// Will give you an array of your object entities
// --------------------------------
// Doctrine\ORM\Query::HYDRATE_ARRAY
// Will give you an array mimicking
// your object graph
// --------------------------------
return $query->getResult(\Doctrine\ORM\Query::HYDRATE_ARRAY);
}
}